Comment Re:It's not dead, it's fun! (Score 4, Informative) 405
No, "I couldn't care less" means "it's not possible to care even less than I already do, even if I wanted to". It means I care the least possible amount. I have reached the bottom.
"I could care less" (but I don't, meaning that I do care a certain amount) means that there is still a margin between the amount I care and the least possible amount of care. I haven't reached the bottom. Nothing is said about the size of that margin, so this statement really doesn't say anything.